FIRMWARE 4G VOLTE D825 GS T1 4G V0.4 M432 MT6572

Frmware Volte 4G Android Smartphone Running with Mediatek Chipset. So you Need MTK Smart Phone Flash Tool For This Device And This tool a free application for flashing Mtk device. this tools developed by mediatek company to improve their Mtk based smart phone. and also their user can use this tools using by upgrade firmware flash stock rom. you need scatter stock firmware and Mtk usb driver and some basic knowledge about how to flash with sp flash tool...